Verify the identity.csc2u - cos u sec u= cot2 u
What will be an ideal response?
csc2u - cos u sec u = csc2u - cos u ? 
= csc2u - 1 = cot2u
Mathematics
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Evaluate. 105
A. 50 B. 1,000,000 C. 100,000 D. 9,765,625
Mathematics
Find the acceleration vector in terms of ur and u?.r = 2 cos 4t and ? = 3t
A. a = (-50 sin 4t)ur - 48 cos 4tu? B. a = (-50 cos 3t)ur - 48 sin 3tu? C. a = (-50 cos 4t)ur - 48 sin 4tu? D. a = (-50 cos 4t)ur + 48 sin 4tu?
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.She took 500 
of vitamin C.
A. kg B. L C. g D. mm E. mg
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.27
- 15
A. 132
B. 12
C. 42
D. 12
Mathematics